Global

Is ecology, as a science, doing enough to address big environmental problems? Here, a review of the top 40 ecology journals suggests not. As ecologists, we have the opportunity to reinforce the relevancy of ecology to society through greater promotion and execution of solution-focused science.

While most curricula addressing violence and peace are developed in privileged contexts, this paper reconsiders existing approaches to peace education from the perspective of communities affected by high levels of violence. In-depth analysis of the educational goals and practices of teachers in Brazilian slums demonstrates how they construct different levels of resistance to violence despite contextual restrictions. Teachers combined a restrictive approach with an ethic of care to create peaceful alternatives, while making use of their community position.

Background: Evidences of infectious pathogens in Alzheimer's disease (AD) brains may suggest a deteriorated innate immune system in AD pathophysiology. We previously demonstrated reduced salivary lactoferrin (Lf) levels, one of the major antimicrobial proteins, in AD patients. Methods: To assess the clinical utility of salivary Lf for AD diagnosis, we examine the relationship between salivary Lf and cerebral amyloid-β (Aβ) load using amyloid-Positron-Emission Tomography (PET) neuroimaging, in two different cross-sectional cohorts including patients with different neurodegenerative disorders.